英语翻译Detailed Business SpecificationAlso known as：requirement

英语翻译
Detailed Business Specification
Also known as：requirements specification stage.To assist the management to make a sound choice,a number of business system options,each describing the scope and functionalities provided by a particular development/implementation approach,are prepared and presented to them.these options may be supported by technical documentation such as Work Practice Model,
LDM(logical Date Model) and DFD.They also require financial and risk assessments to be prepared,and need to be supported by outline implementation descriptions.
The followings steps are part of this stage:
Define required system processing.This step is to amend the requirements to reflect the selected Business System Option,to describe the required system in terms of system date flows and to define the user roles within the new system.
Develop required date model.This step is undertaken in parallel with the above step.The LDM of the current environment is extended to support all the processing in the selected business system option.
Derive system functions.During the parallel definition of date and processing,additional events are identified,which cause existing functions to be updated,and new functions to be defined.Service leval requirements for each function are also identified in this step.
Develop user job specifications.A Work Practice Model is developed to document the understanding of the user jobs in concern.
Enhance required date model.Its objective is to improve the quality of the required
system LDM by the application of relational date analysis(also known as normalization).
Develop specification prototypes.It is used to describe selected parts of the required system in an animated form,for demonstration to the users.The purpose is to demonstrate that hte requirements have been properly understood and to establish additional requirements concerning the style of the user interface.
Develop processing specification.This step is principally concerned with defining the detailed update and enquiry processing for the required system.
Confirm system objectives.During stage 1 and 3,the requirements will bave been recorded,as they are identified,in ther user requirements.This step represents the final review of the requirements before the completion of the Definition of Requirements Stage.