31 terms

Chapter 11 Vocab

Systems development life cycle
overall process for developing information systems from planning an analysis through implementation and maintenance.
Planning Phase
Involves establishing a high level plan of the intended project and determining project goals
Analysis Phase
involves analyzing end user business requirements and refining project goals into defined functions and operations of the intended system
Design Phase
involves describing the desired features and operations of the system including screen layouts, business rules, process diagrams, pseudo code, and other documentation
Development phase
involves taking all of the detailed documents from the design phase and transforming them into the actual system
Testing Phase
involves bringing all the project pieces together into a special testing environment to test for errors, bugs, an interoperability and verify that the system meets all of the business requirements defined in the analysis phase
Implementation phase
involves placing system into production so users can begin to perform actual business operations within the system
Maintenance phase
involves performing changes, corrections, additions, and upgrades to ensure the system continues to meet the business goals
A set of polices, procedures, standards, processes, practices, tools, techniques, and tasks that people apply to technical and management challenges.
Waterfall methodology
An activity based process in which each phase in the SDLC is preformed sequentially from planning through implementation and maintenance
Ambiguous requirement
The financial report must show profits in local and U.S. currencies
Unambiguous Requirement
The financial report must show profits in local and U.S. currencies using the exchange rate printed in Wall Street Journal for the last business day of the period being reported
Iterative development
consists of a series of tiny projects
Agile methodology
aims for customer satisfaction through early an continuous delivery of useful software components developed by an iterative process with a design point that uses the bare minimum requirements
Rapid application development methodology
emphasizes extensive user involvement in the rapid and evolutionary construction of working prototypes of a system to accelerate the systems development process
Extreme programming methodology
like other agile methods, breaks a project into tiny phases, and developers cannot continue on to the next phase until the first phase is complete
Rapid unified process methodology
provides a framework for breaking down the development of software into four gates
ensures all stakeholders have a shared understanding of the system
primary questions answered in this phase deal with agreed upon details of the system including the ability to provide an architecture to support and build the system
This stage includes the building and developing of the product
Primary questions answered in this phase address ownership of the system and training of key personnel
Scrum Methodology
uses small teams to produce small pieces of deliverable software using sprints, or 30 day intervals, to achieve an appointed goal
Scope Creep
occurs when the scope of the project increases
Feature Creep
occurs when developers add extra features that were not part of the initial requirements
Program evaluation and review technique
graphical network model that depicts a projects tasks and the relationships between those tasks
a logical relationship that exists between the project tasks, or between a project task and a milestone
Gantt Chart
a simple bar chart that depicts project tasks against a calendar
Project manager
an individual who is an expert in project planning and management, defines and develops the project plan, tracks the plan to ensure the project is completed on time and on budget
Change management system
includes a collection of procedures to document a change request and define the steps necessary to consider the change based on the expected impact of the change
In sourcing
using the professional expertise within an organization to develop and maintain the organizations information and technology systems
Core competencies
Using outsourcing as means to fuel revenue growth rather than just cutting cost