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INFO245 Chapter 4: Development Life Cycle

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Title: INFO245 Chapter 4: Development Life Cycle


1
INFO245 Chapter 4Development Life Cycle
2
Course Refresher
  • Course has two parallel streams
  • 1 - What are critical things that IS and business
    people should understand about Enterprise
    Systems?
  • 2 - What do these systems look like and how do
    they work?
  • Stream 2 Labs

3
Course Refresher
4
Course Refresher
5
Learning Objectives
  • Discuss the key issues in ERP implementation.
  • Review the Systems Development Life Cycle (SDLC)
    and why it is critically important on an ERP
    project.
  • Understand ERP Implementation Life Cycle.
  • Discuss the concept of Change Management on ERP
    projects

6
The Challenge
  • Implementing an ERP system ranges from somewhat
    challenging to incredibly challenging, depending
    on
  • Size and culture of the organization
  • Extent of change proposed
  • Maturity of the organizations management
    processes
  • Organizations need (among many other things) a
    process that guides them through the
    implementation of an ERP system

7
Implementation Success Factors
  • A proven implementation process, or System
    Development Life Cycle (SDLC)
  • Top (business) management commitment financial,
    visibilitytime!.
  • IT driven projects fail
  • Experienced and knowledgeable implementation
    team
  • Project management
  • Business SMEs
  • ERP-specific SMEs.

8
Implementation Success Factors
  • Minimize customizations to ERP software
  • Dont touch the source code
  • Effective training and change management.
  • Hidden costs, often overlooked
  • Effective and frequent communication with all
    project stakeholders
  • Team
  • Business users
  • Executives

9
What is an SDLC?
  • Helps an organization execute an Information
    System (or any) project
  • Structured process of planning, designing, and
    implementing an information system
  • Takes a big problem implementing an ERP system
    and breaks it down into small, manageable parts
  • Reduces risks
  • Assures quality

10
Implementation Alternatives
  • ERP
  • SAP
  • Syspro

We build, consultants build or blended approach
11
SDLC Methodology
  • Designed initially for custom software
    development build
  • Adapted for ERP implementation buy

12
Standard SDLC Phases
  • Investigation Phase (aka Planning and Scoping)
  • Identification of the business problem that needs
    to be solved
  • Definition of the scope of the project
  • Thorough analysis of the costs and benefits
  • Analysis Phase (aka Requirements)
  • Thorough analysis of user requirements of the new
    system focusing on the problems of the current
    system.
  • Defines what the system needs to do

13
Standard SDLC phases (cont)
  • Design Phase
  • Focus is on the new systems architecture, user
    interface, and reporting requirements.
  • Blueprint or technical specifications of the new
    system.
  • Defines how technology will address
    requirements
  • Implementation Phase (aka Development or
    Construction)
  • Acquisition of hardware, software, development of
    custom applications, new system testing
  • Training
  • Data conversion
  • Maintain (aka Support / Operations)

14
ERP SDLC
  • An ERP development life cycle provides a
    systematic approach to implementing ERP software
    in the changing but limited-resource
    organizational environment.
  • Focus is on
  • Vendor selection
  • Process change
  • Software configuration (vs. customization)
  • Change management

15
ERP Life Cycle
  • Investigation Phase (Scope and Planning)
  • Define business problem and project scope
  • Feasibility analysis
  • Benefits and costs
  • Organizational readiness
  • Identify critical characteristics that the of
    the ERP system must possess
  • Showstoppers
  • RFP development
  • Vendor evaluation and selection

16
ERP Life Cycle (Contd)
  • Analysis and Design Stage
  • Acquire and install software in test environment
  • Analysis of user requirements
  • Map the differences between the current business
    process and the available processes in the ERP
    software.
  • Evaluate among alternatives, select best ERP
    configuration for each business process in scope
  • Design new work flows
  • Evaluate available reports, select relevant,
    design additional
  • Develop strategy for
  • Data conversion
  • System cutover
  • Training

17
ERP Life Cycle (Contd)
  • Development Stage
  • Build the production version of the software to
    be made available to the end-users.
  • Means configuring and testing the ERP system
  • Change management team works with end-users on
    implementing the changes in business processes.
  • Data team similarly works on migrating data from
    the old system to the new system.
  • Users are thoroughly trained
  • Timing?
  • Configure security

18
ERP Life Cycle (Contd)
  • Implementation
  • Focus is on installing and releasing the system
    to the end-users and on monitoring the system
    release to the end-users.
  • System conversion (4 options)
  • Phased
  • Pilot
  • Parallel
  • Direct Cut or big bang
  • Gather feedback received from system usage needs
    to be funneled to the post-implementation team
    for ongoing system support.

19
ERP Life Cycle (Contd)
  • Operation
  • Support users
  • Need to keep the core team together!
  • Managing of new releases of the software,
    installation of patches and upgrades.
  • Managing the software contract with the ERP
    vendor.

20
ERP Configuration
  • Evaluating all of the options that the package
    provides
  • Choosing options that work best for your
    particular needs
  • Configuration includes defining
  • The activities associated with each process
  • Data that must be collected by the system
  • Important relationships
  • Business rules
  • Document content

21
Sales Order Process Activities
Capture Order
Supervisor Review? Print Order?
Sales Order Entry
Pick Materials
Pack Materials
Invoice Customer
Post Goods Issue
Print Shipping Doc? Advise Order Taker That
Order Shipped?
22
ERP Configuration Sales Order Processing Example
23
Comparing and Contrasting SDLC with ERPLC
24
Vendor Specific Methodologies for ERP
  • Total Solution (Ernst Young, LLP)
  • Fast Track (Deloitte Touche)
  • Accelerated SAP or ASAP (SAP)
  • Business Integration Methodology (Accenture)

25
Change Management
  • Basic objective is to overcome peoples
    resistance to change
  • Resistance to change actually has physical
    roots..
  • Routine activities / new activities different
    parts of the brain
  • People resist change due to
  • Habit
  • Cynicism
  • Fear
  • Loss of power
  • Perceived change in organizations culture

26
Change Management Process
  • Unfreeze
  • Introduce Change
  • Refreeze

27
Change Management Techniques
  • Make sure top management is involved
  • But together a change management plan
  • Build a change management team with the right
    skills and knowledge
  • Use consultants
  • Continuously communicate
  • Why
  • What
  • How
  • When
  • Provide excellent training and education on
  • New software
  • New process

28
Change Management Techniques (cont)
  • Get users feedback to the change ensure that
    concerns are recognized
  • Seek buy-in
  • Be persistent
  • Understand that you cant win everyone over.plan
    for that.
  • Celebrate when change is implemented!

29
ERP Training
  • What does ERP failures are not systemic mean?
  • What specifically is often the cause of failure?
  • What is techy training?
  • What kind of training do users really need?
  • Who needs to be trained?
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