Software Engineering CE 501 Prepared by : Ashwin Raiyani.

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Software Engineering CE 501 Prepared by : Ashwin Raiyani

RK UNIVERSITY Teaching Scheme & Book Information Prepared by : Ashwin Raiyani

RK UNIVERSITY More Reference Book Prepared by : Ashwin Raiyani

PROCESS: A GENERIC VIEW Chapter Prepared by : Ashwin Raiyani

RK UNIVERSITY What? A software process - a series of predictable steps that leads to a timely, high-quality product. Who? Managers, software engineers, and customers. Why? Provides stability, control, and organization to an otherwise chaotic activity. Steps? A handful of activities are common to all software processes, details vary. Work product? Programs, documents, and data. Correct process? Assessment, quality deliverable. We will discuss on… Prepared by : Ashwin Raiyani

RK UNIVERSITY 6 Software Engineering a “quality” focus process model methods tools A Layered Technology

RK UNIVERSITY 7 Software Engineering Software Engineering: (1) The application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software; that is, the application of engineering to software. (2) The study of approaches as in (1). - IEEE Standard

RK UNIVERSITY 8 A Process Framework Process framework Umbrella activities framework activity #1 SE action #1.1 Software process tas k set s  work tasks work products QA points milestone s SE action #1.2 tas k set s  work tasks work products QA points milestone s framework activity #2 SE action #2.1 tas k set s  work tasks work products QA points milestone s SE action #2.2 tas k set s  work tasks work products QA points milestone s

RK UNIVERSITY 9 Umbrella Activities Software project management Formal technical reviews Software quality assurance Software configuration management Work product preparation and production Reusability management Measurement Risk management

RK UNIVERSITY 10 Framework Activities Communication Planning Modeling Analysis of requirements Design Construction Code generation Testing Deployment

RK UNIVERSITY 11 The Process Model: Adaptability The framework activities will always be applied on every project... BUT The tasks (and degree of rigor) for each activity will vary based on: the type of project characteristics of the project common sense judgment; concurrence of the project team

RK UNIVERSITY 12 The CMMI The CMMI defines each process area in terms of “ specific goals ” and the “ specific practices ” required to achieve these goals. Specific goals establish the characteristics that must exist if the activities implied by a process area are to be effective. Specific practices refine a goal into a set of process- related activities.

RK UNIVERSITY 13 Personal Software Process (PSP) Recommends five framework activities: Planning High-level design High-level design review Development Postmortem Stresses the need for each software engineer to identify errors early and as important, to understand the types of errors

RK UNIVERSITY 14 Team Software Process (TSP) Each project is “ launched ” using a “ script ” that defines the tasks to be accomplished Teams (of 2 to 20 engineers) are self-directed: Plan and track work, set goals, own processes and plans Measurement is encouraged Measures are analyzed with the intent of improving the team process (through coaching, motivation, … )

RK UNIVERSITY 15 Process Patterns Process patterns define a set of activities, actions, work tasks, work products and/or related behaviors A template is used to define a pattern Typical examples: Customer communication (a process activity) Analysis (an action) Requirements gathering (a process task) Reviewing a work product (a process task) Design model (a work product)

RK UNIVERSITY 16 Process Assessment The process should be assessed to ensure that it meets a set of basic process criteria that have been shown to be essential for a successful software engineering. Many different assessment options are available: SCAMPI CBA IPI SPICE ISO 9001:2000

RK UNIVERSITY 17 Assessment and Improvement

RK UNIVERSITY 18 The Primary Goal of Any Software Process: High Quality Remember: High quality  project timeliness Why? Less rework!