Page 214 - DCAP302_ENTERPRISE_RESOURCE_PLANNING

Enterprise Resource Planning

notes integration testing

The software component of the system is assembled into a module and tested for
1. Data integrity

2. Configuration
3. Parameters
It also helps identify resource problems and ensures that the module works on the environment.
Integration testing can be ‘bottom-up’ or a ‘top-down’ approach.

The ‘bottom-up’ approach combines one or more modules that perform a major function of the
software system into a build which can be tested or demonstrated and tests the build. In the
‘top-down’ approach the top-level control is tested first and all modules that comprise a major
function are integrated so as to demonstrate an operational function. Both the approaches are
used in Integration test plans.

system testing

Software is but one part of a system that includes hardware, network and users. The focus of System
testing is on testing the complete integrated system with reference to the System Specifications.
The tests address system characteristics such as performance, security and recovery.

acceptance testing

This is also known as validation / functional testing. Acceptance testing demonstrates that the
software is operational and conforms to all functional and performance requirements documented
in the Software Requirement Specifications. It verifies the operational flow and evaluates the
fitness of the system on the field from the User’s perspective.
Ideally the tests are executed by the users / requestors without the assistance of the developers.
The testing team should approach testing from the ultimate user’s viewpoint. The successful
testing of the software instills confidence in the Users.

12.5.2 planning for testing

The Testing process as seen earlier starts from the definition phase and is a set of activities as
indicated below.

1. Preparation of the Test Plan
2. Definition of the Test Design & Criteria
3. Identification of the Test cases & data set
4. Recording the results

5. Debugging and correction
6. Definition of the next testing cycle.
A test plan has to be prepared for each level of testing. The test plan defines the scope, approach,
type and the Pass / Fail / suspension criteria. Various types of testing as indicated below can be
planned:
1. Functional testing which focuses on the business requirements, similar to acceptance
testing.

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