SOFTWARE PROJECT MANAGEMENT

BY Dr. Narendra M.Mishra

IMT-CDL, Ghaziabad

Technical Development of software• What is software?• Computer programs and associated documentation together constitute

the software .• A software may be developed for :1. A Single customer according to his/her specification (bespoke)2. General marketi.e generic in nature and to be sold to a range of different customers through

different channels.

What are the characteristics of good software ?

1.Maintainability:Software must evolve to meet changing needs.2. Dependability:Software must be reliable3.Efficiency:Software should not waste system resources.4. UsabilityIt should be usable by the users for whom it is

designed.

Programs vs Software ProductsCharacteristics Program SW productUsers self OthersNumber of user Self/few Large numberSize small LargeFunctionality limited LargeInterfaces Ok Well designedEnvironment One SeveralSystem Used by itself Works with other

systemsUser background Similar VariedPresence of bugs Not a major concern Major concern

Documentation Minimal ExhaustiveTesting Minimal ExhaustiveCost/user High lowDevelopers One /few ManyUse of standards, etc Not essential essential

Planning for reusable software libraries

Application requirments

Application development

processApplication

Application development process

Application requirement

Application development

processApplication

Library reqiurmentLibrary

development process

Object library

Trends in ERP solutions

• ERP SOFTWARE has embarked beyond the traditional business processes to support all business decisions.

• IT/IS planners are considering applications that include ERP:

• Existing ERP software is also playing a role in such decisions.

Trends IN ERP

• Organizations stay with their ERP vendor (SAP, ORACLE etc) rather than looking elsewhere for additional solutions e.g data warehousing, data mining.

• Trend2: several software vendors are building applications that integrate with the well known ERP software packages.

trnd3: successful deployers of erp , offer consultancy service to other prospective deployers.

Software Maintenance

• Software maintenance consumes more than 60% of the software budgets and it is growing.

• Mechanism needs to be developed for evaluating, controlling and making modifications.

• Cycle of software reengineering activities during maintenance:

• Inventory analysis of software assets , Document restructuring, Reverse engineering, code restructuring, data restructuring, Forward engineering.

Maintenance model for major rework

Reverse engineering Forward engineering

Change requirement

Code

Module specification

Design

Requirements specification

Modified required specificat

ions

Design

Module specifications

code

Evolving role of software

• Software delivers the most important product of our time: information

Evolution of Software engineering Discipline

• SE evolved over the last 50/60 years with contributions from software professionals and several researchers from different discipline

• Systematic and engineering like approach to software development .

Software engineering definitions

• IEEE: systematic approach to development, operations , maintenance , and retirement of software.

System development cycle: