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SDLC: Information Systems Development Life Cycle
Transcript of SDLC: Information Systems Development Life Cycle
practices that need to be corrected. opportunity, objective identification includes ways to improve existing practices. identifies the goal of an organization
and for specific business processes. FEASIBILITY ANALYSIS to see which problems, etc. can
be adequately addressed. PROTOTYPE is an early sample or model built to test a concept or process or to act as a thing to be replicated or learned from. data gathered
RESULT: A system proposal that lists the
recommended actions and cost or benefits. System Analysis DESIGN Logical design of the information system including identification of databases
that will store required data and applications
that will operate on the database. System Design DESIGN and
DATABASES Gather user and system requirements. Create a conceptual model of the database using the entity relationship model that is based on the user requirements. choose a DBMS. choose a DBMS. convert this conceptual model into a logical database model. normalize the relational model of the database. implement the normalized relations as tables in a relational database. DEVELOP physical design of the information system where the data or information will be entered or seen by the users.
Queries are also made with the items enumerated above.
DOCUMENTATION for end users is also written. System Development
and documentation DEPLOY sampling existing data files and databases
examining existing reports and forms
user interviewing and questionnaires
Gathering DELIVER System testing
and maintenance System is tested on real data to pinpoint faults.
Any necessary changes are applied in this step before the system goes into production. system is put into production. end user training is performed. users and analysts evaluate the effectiveness of the system. implementation
and evaluation ©petefrancisabareta. 2011 END