MyGDI Standard: Facilitate Data Sharing And Interoperability Among Geospatial Information by: Mohama

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MyGDI Standard Facilitate Data Sharing And
Interoperability AmongGeospatial Information
byMohamad Kamali Adiminkamali_at_nalis.gov.my
Malaysian Center for Geospatial Data
Infrastructure (MaCGDI)
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Scope of Presentation

• Background
• Introduction to Standard
• MyGDI Standard
• MyGDI Standard Technical Committee
• MyGDI Standard Development Process
• Development and Implementation Issues
• Conclusions

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Background
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Background

• Malaysian Center for Geospatial Data
  Infrastructure (MaCGDI) promotes the use of
  geographic content and transfer standards for
  implementing various components of the Malaysian
  Geospatial Data Infrastructure (MyGDI).
• This is done in consultation with the official
  standards bodies such as the International
  Organization for Standardization (ISO),
  Department of Standards Malaysia (DSM) and
  Standard and Industrial Research Institute of
  Malaysia (SIRIM).
• MaCGDI promotes standards after they have been
  endorsed by the various governments through a
  consensus-building process. Standards can be
  officially mandated (e.g. ISO, SIRIM). It is the
  synergy and interplay of the key standards to
  support the MyGDI that MaCGDI is particularly
  interested in to ensure interoperability goals
  are met.

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Introduction to Standard
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Introduction to Standard

• The International Organization for
  Standardization (ISO), defines standards as
• "documented agreements containing technical
  specifications or other precise criteria to be
  used consistently as rules, guidelines, or
  definitions of characteristics, to ensure that
  materials, products, procedures, and services are
  fit for their purpose." 
• Further,  
• "standards contribute to make life simpler, and
  to increase the reliability and effectiveness of
  the goods and services we use." 

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Introduction to Standard

• What If Standard did not Exist?
• Standards make an enormous contribution to most
  aspects of our lives
• We are usually unaware of the role played by
  standards in raising levels of quality, safety,
  reliability, efficiency and interchangeability,
  as well as in providing such benefits at an
  economical cost.
• The consistent use of standards have important
  economic and social repercussions. Standards make
  a positive difference, not just to engineers and
  manufacturers for whom they solve basic problems
  in production and distribution, but to society as
  a whole.
• The use of standards would contribute to make the
  development, manufacturing and supply of products
  and services more efficient, safer and cleaner.
• In short, standards serve to safeguard
  consumers, and users in general, of products and
  services - as well as to make their lives
  simpler.
•  

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Introduction to Standard

• Why Are Geographic Standard Important?
• Geographic information, that is an information
  associated with a location on the earths surface
  has traditionally been associated with
  cartography and surveying. Today, more people are
  gaining access to geographic information and
  using it in business processes and systems to
  assist decision-making within and between many
  organizations.
• The widespread use of geographic information is
  creating a need for standards. Consistent and
  accessible information, and associated systems
  and services contribute to make life simpler and
  increase the reliability and effectiveness of the
  goods and services we use.
• The purpose of geospatial standards is to
  facilitate data sharing and increase
  interoperability among automated geospatial
  information systems.

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Standard In Malaysia

• Standard In Malaysia
• Department of Standards Malaysia (DSM) and SIRIM
  are responsible for the development and
  application of standards-related products in
  Malaysia, in partnership with the community,
  business and government and rely on voluntary
  participation by experts.
• Department of Standard Malaysia also represents
  Malaysia on the International Organization for
  Standardization (ISO) and has a policy of
  endorsing and adopting International Standards
  wherever possible.
• Within Malaysian Standard, the Joint Technical
  Committee for Geographic information/ Geomatics
  (also known as ISO/TC2) is dedicated to
  developing standards for geographic information
  and associated technologies.
• Digital Geographic Information has evolved into
  an essential element in the planning and conduct
  of public operations. The required data volume,
  demand and data complexity dictates that
  multi-national agreement for digital data
  standards be established to assure compatibility.

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Standard In Malaysia

• Role of MaCGDI
• MaCGDI is developing key partnerships with
  business and government to facilitate the
  adoption of its policies and best practice
  principles in spatial data management through
  projects such as the MyGDI and Geoinformation for
  Executive (G4E)
• The MyGDI is not prescriptive and does not
  require the adoption of specific systems. MaCGDI
  does, however, encourage the adoption of relevant
  international and national standards related to
  geographic information and the method of delivery
  through the MyGDI. This will ensure that spatial
  information is compatible with other datasets and
  enable use by other systems.
• MaCGDI has delivered standards based on
  international best practice. One of the
  International Standards that ISO/TC 211 worked on
  was a standard on metadata known as ISO 19115.
  MaCGDI works closely with Department of Standard
  Malaysia and SIRIM to raise the awareness and
  uptake of geospatial standards.

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MyGDI Standard
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MyGDI Standard

• MyGDI Standard is one of the building block which
  determine the key success of MyGDI services.
• MyGDI Standard played an important role as the
  prime mover to allow data sharing and avoid
  wasteful duplication and promote effective
  economic management of resources by Federal,
  State and Local Authorities.
• The importance of standard in MyGDI is stressed
  because of the following reason 

• The difference of data format produced. 
• The difference of method and standard used in
• data collection
• The difference of data in term of semantics
• The difference in reference coordinate system. 

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MyGDI Standard

• Malaysian Standard for Feature and Attribute
  Coding Catalogue (MSFACC)
• This Malaysian Standard is used in the Geographic
  Information System (GIS) and mapping industries
  in Malaysia. The standard provides the
  specification by which producers and users may
  exchange digital spatial data. By doing so, the
  possibility of duplication of effort in database
  development will be minimized
• The MSFACC describe the encoding of the world in
  terms of features and attributes. Features are
  real world object while attributes are properties
  or characteristics associated with the object.

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MyGDI Standard

• MSFACC Coding Structure
• Each feature is identified by a unique
  six-character code. The first character
  corresponds to the feature category and can have
  an alphabetic value from A to Z as follows
• Code Category Code
  Category
• A Aeronautical S
  Soil
• B Built Environment T
  Transportation
• D Demarcation U
  Utility
• G Geology V
  Vegetation
• H Hydrography X
  Special Use (Dataset-specific)
• R Hypsography Z
  General
• Each major category is further divided into sub
  categories which are identified by the second
  character of the six-digit code containing an
  alphabetic value from A through Z.

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Framework Data MyGDI
A -Aeronautical Information
DCA
DSMM
TCPD/ CITY COUNCIL
DMG
DOA
MACRES
DID
PWD
DOA
TNB/STMB
DSMM
DSMM
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MyGDI Standard

• MSFACC Attribute Codes
• Each attribute is identified by a unique three
  character alphanumeric code. There are two type
  of attribute values coded and actual. A given
  attribute has only one type of value. Coded value
  may range 0 to 999 and each of the value has
  meaning in the look-up table. Actual values are
  typically real measurement like height, width
  etc.
• Changes to this standard are coordinated by the
  TC2 SIRIM. Proposed changes will be reviewed by
  the TC2 SIRIM and approved changes will be
  incorporated in the next edition of the MSFACC or
  an Amendment to this standard.

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MyGDI Standard

• Rules for documenting new features and attributes
• The rules for documenting new features and
  attributes are as follows
• Feature and attribute names should be precise and
  unambiguous
• Attributes values should be self describing
• Use of slash to describe an either/or situation
  in unacceptable
• A feature and attribute should not have the same
  name
• A feature or attribute can have multiple names
  but only one definition
• A feature or attribute name should not be used in
  the definition of the feature or attributes
• Measurements should not be used in the
  definition of a features or attribute.

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MyGDI Standard

• Rules for documenting new features and attributes
• A feature name or definition should not specify
  if the feature is an area, point or line
  feature
• A feature should be relatively permanent
• A feature should not be duplicated between
  categories
• All attribute value are positive unless otherwise
  stated
• A boundary is just a spatial object or
  information that be considered a line feature and
  not a perimeter or solid surface of an area or
  spatial feature.
• The systematic structure of the coding scheme
  should be permanent.

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MyGDI Standard

• Search Engine
• The search engine provides a method for user to
  search appropriate codes to be applied into their
  geospatial data. This service is available at all
  times and hosted by MaCGDI.
• The system is developed to be flexible as users
  can search by the following categories and
  keyword
• Feature Description
• Feature Name
• Feature Code
• Attribute Name
• Attribute Code
• The keyword must have at least three character to
  minimize search result

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MyGDI Standard

• Procedures to use Search Engine
• i. Type URL www.macgdi.gov.my/searchengine
• Fill up the Keyword column. For example type
  geo
• iii. Select Category by clicking the drop-down
  list. For example select Feature Name
• Click Submit button to proceed
• v. Click Help button for more information

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MyGDI Standard Search Engine
Click Submit button to proceed
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Detailed Result of MyGDI Standard Search
Click on the desire record for more detailed
description Example click on GE2000
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Detailed Description of MyGDI Standard Search
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MyGDI Standard

• Development of Feature Code Translator
• Feature codes translator is a system software
  used to read the feature codes ready available in
  the land related agencies and translate it to a
  new Malaysian Standard GIS MS  1074 in order for
  the spatial data sharing and transfer between
  agencies to be in place through MyGDI.
• The development of the system will be implemented
  phase by phase when the framework feature codes
  are finalised.

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MyGDI Standard

• Unique Identifier for Land Parcels for Cadastral
  Data (UPI)
• UPI have been introduced to overcome the
  existence of inconsistency coding in a various
  agencies have generate difficulties to the user
  in carry out data searching and data analysis.
• There are three categories of UPI introduce for
  cadastral data searching consisting
• Final title for surveyed land,
• Qualified title for unsurveyed land and
• Strata title.
• The establishment of UPI was aimed to assist any
  activities pertaining to data retrieving and data
  exchange for spatial and nonspatial cadastral
  data. So that searching process for unsurveyed
  land can be linked to Cadastral Database (PDUK)
  from DSMM (JUPEM), Valuation Information System
  from Department of Valuation and Property and
  Services Malaysia, Local Authority and land
  title registration information from Land Office.

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Unique Identifier for Land Parcels (UPI)
To ensure the uniqueness of land parcel
1) Surveyed Land Parcel State Division
District CityTown/Mukim Section
Lot Number
2) Unsurveyed Land Parcel State Division
District City/Town/Mukim Section
Type of Title Title Number
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MyGDI Standard

• MyGDI Metadata Standard
• Metadata is a component of data which describes
  the data. It is "data about data." Metadata
  describes the content, quality, condition, and
  other characteristics of data. Metadata describes
  the who, what, when, where, why, and how about a
  data set. Without proper documentation a data set
  is incomplete.
• Why is Metadata a Vital Component of a Data Set?
• Metadata is critical to preserving the usefulness
  of data over time. For instance, metadata
  captures important information on how the data
  were collected and/or processed so that future
  users of that data understand these details.
  Another vital function metadata serves is as a
  record in search systems so that users can locate
  data sets of interest.

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MyGDI Standard

• Why Should Standardize the Metadata?
• Standards Should Be Used When Writing Metadata
  for a number of reasons
• Standards provide a common set of terms. With
  standards, there is no confusion about what is
  being communicated by a particular term. From one
  metadata record to the next, the terminology is
  the same.
• Standards allow for quick location of a certain
  element. If a standard is used, finding a
  specific piece of information in a metadata
  record will be much easier than if no standard is
  used.
• Standards enable automated searches. When
  standards are used, computers can be programmed
  to search and find useful data sets. This
  function of standards will become more important
  as more electronic data clearinghouses are built.

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Metadata Update

• i. From Internet explorer, metadata update
  module can be accessed
• by typing these URL
• National Clearinghouse http//mygdi.macgdi.g
  ov.my/admin
• Perlis Clearinghouse http//perlis.nalis
  .gov.my/admin
• Kedah Clearinghouse http//kedah.nalis.go
  v.my/admin
• Melaka Clearinghouse http//melaka.nalis.g
  ov.my/admin
• Labuan Clearinghouse http//labuan.nalis.g
  ov.my/admin

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Metadata Update

• ii. Input a username and password and click
  Login button

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Metadata Update

• iii. Select LRA Manager and click Submit button.

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Metadata Update

• iv. The Administrator Modules page will be
  displayed. Click on Product submenu

• v. From the Product submenu, user will be given
  two option
• Product Update to create new
  product
• Metadata Update to update
  metadata details

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Metadata Update

• In case if user want to create new product
  metadata, select product update submenu and the
  page as below will be displayed. The page will
  also display an existing

Add New
Update Product
Delete This Record
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Metadata Update

• In case if user select the Update Product icon,
  the screen will display the page as shown below

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Metadata Update

• In case if user want to update product metadata,
  select
• metadata update submenu and the page as below
  will be
• displayed

To create new metadata record
To search desire metadata to be updated
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• By clicking Search Now button

Metadata Update

• By clicking Search Now button , list of existing
  metadata will be displayed as below

Click this button to update metadata
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Metadata Update

• To update the existing metadata record, click
  the Update Metadata button. The page will
  display the metadata detail which user can update
  by editing the existing record.
• At the end of the page, user can select an option
  by clicking the icon given. The function of each
  icon are as follows

Submit - to save the current edited data
Reset - to cancel the editing process and
restore the last edited value of data
Delete - to delete the currently open data
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Metadata Update

http//mygdi.macgdi.gov.my/admin
http//perlis.nalis.gov.my/admin http//kedah.nal
is.gov.my/admin http//melaka.nalis.gov.my/admin h
ttp//labuan.nalis.gov.my/admin

URL

Enter Username and Password


Laison Officer
LRA Manager
Logout
Prepaid
Manage User
Product
Order
Change Password
Documentation
Product Update
Metadata Update
Add New to create new product metadata
Update Product to update product information
Delete this Record to delete the product metadata
A
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Metadata Update



A

Metadata Update To create new metadata record
Search Now To search desire metadata product to
be updated

Update Metadata
Save as new record
Delete This Record
View Metadata Details
Submit
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MyGDI Standard Technical Committee



  i. Department of Survey and Mapping Malaysia
(Chairman) ii. Department of
Mineral and Geosciences Malaysia iii. Department
of Drainage and Irrigation Malaysia
iv. Department of Forestry Peninsular
Malaysia v. Department of Agricultural Peninsular
Malaysia vi. Department of Hidrography viii. Depar
tment of Town and Regional Planning ix. Department
of Statistics Malaysia x. Kuala Lumpur City
Council xi. Public Work Department
xii. Malaysian Centre For Remote Sensing 
xiii. Department of Valuation and Property
Services  xiv. Department of Agricultural
Sarawak xv. Department of Land and Survey
Sabah xvi. Department of Land and Survey
Sarawak xvii. Malaysian Center for Geospatial
Data Infrastructure (Secretariat) 


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MyGDI Standard Development Process
Identify and recorded the proposed standard to be
developed.
Identify and Recorded
Gather a feedback from provider agencies and user.
Prepare questionnaire and distribute
Collect feedback
Produce a feedback in a form of table/ graph/ bar
chart
- Establish a WG members, TOR and Roadmap -
Examine and determine the priority -
Normalisation, Generalisation dan standardization
process
Prepare the proposal paper
Amendment
Consent from JKTSM
Presentation of working paper to MSTC
Not Approved
Approved
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MyGDI Standard Development Process
Prepare report and working paper to be presented
to TC2
Including a consistency of code
Approved
Amendment
Submit to SIRIM for - Public Comment - Amendment
(if any) - Accreditation as MS ISO -
Documentation
TC2
SIRIM
Accreditation approval
Inform to JKTSM pertaining the Standard
accreditation
Inform to the related Agencies and other
Technical Committee via a web
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MyGDI Standard Development Process
Promotion activities to encourage the usage of
Standard
Implementation and monitoring
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Issues

• i. Difficulties in filling a metadata component
  pertaining
• to Data Quality values and
  description.

The metadata component which appear unclear to
be accomplished are DQ Completeness -
quantitative value or values, content
determined by the
evaluation procedure
used DQ Topological -
correctness of the explicitly encoded
Consistency topological
characteristics of the dataset
as described by the scope.
DQ Positional - Accuracy of the position
of features. Accuracy DQ Thematic
- Accuracy of quantitative attributes and
Accuracy the correctness of
non-quantitative
attributes and of the classifications of
features and
their relationship.


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Issues

• ii. Metadata was not updated in retaliation
  with the
• dataset update.

Many data provider agencies, not taking an
appropriate move to update their metadata while
updating their dataset. Hence the metadata was
not describe the actual content, quality,
condition and other characteristics of the data

• iii. To cater a different need and requirement
  of state
• in developing UPI
• The need required by state of Peninsular
  Malaysia,
• Sabah, Sarawak and Labuan to develop
  UPI was varies.
• A different UPI structure needed to
  be developed to suit
• their administrative boundary.

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Issues

• iv. Code mapping mismatch.

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Conclusion

• MyGDI Standard emerge as an important tools to
  ensure the successfulness of MyGDI
• Without Standard, Spatial data sharing and
  transfer could not be implemented smoothly by
  MyGDI
• The success of MyGDI Standard is largely depends
  on the commitment of the data provider agencies,
  user and ISO TC211

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The End Thank You MALAYSIAN CENTER FOR
GEOSPATIAL DATA INFRASTRUCTURE APRIL 2004