Indirect variation Sample Clauses

Indirect variation. We consider this type as a point out of quality attributes due to the relationship with functional variability too. - Impacts: Functional or quality variability can indirectly cause variation in the quality or functional requirements. Taking into account the three vertices of variability, several requirements, considered important for modelling quality attribute variability, are described below: • Modelling and automatic reasoning: To provide a way to represent quality attribute variability in order to analyze and reason about the model. Because if so interesting information is captured, it is very reasonable to use it when deriving or taking other type of decisions. Different reasoning tasks should be interesting: get an approximate value or level for several quality attribute starting from a set of functional requirements, detect impossible configurations starting from a set of functional and quality requirements, detect conflicts among qualities and provide help to performance a trade off analysis... Due to the complexity of this analysis and reasoning, it is very advisable to make it automatic. To achieve automatic reasoning artificial intelligence techniques are need. Three well known problems in the area of automated reasoning are Constraint Satisfaction Problems (CSP), Boolean Satisfiability Problems (SAT) and Binary Decision Diagrams (BDD) [37]. • Quality attribute characterization: Quality attributes have vague definitions. In different domains, one quality attribute may not mean exactly the same or different names are used for the same concept. So it is necessary to concretize and make quality attributes more specific. A mechanism for describing and explaining a quality attribute adequately must be provided: A structure where a quality attribute may be explained through refinement among different levels. • Optionality: In one product one attribute may be important and in another this attribute not be required. So this attribute is optional in the product line. This may happen at quality attribute level but also at lower level, in the refinements of this quality attribute. For instance, in a quality attribute (performance) that is decomposed into two concerns (“Data latency” and “Transaction throughput”). Those concerns can also be optional or variant. This variability must be represented and not only at product level. It is not enough with specifying this optionality when deriving products.
Sample 1
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Related to Indirect variation

  • F3 Variation F3.1 The Authority may from time to time during the Contract Period, by written notice to the Contractor, request a variation of the Contract provided that such variation does not amount to a material change to it. Such a change is hereinafter called a “Variation”.

  • WAIVER AND VARIATION 13. No waiver or variation of this Parent Agreement shall be of any force unless such waiver or variation is agreed upon in writing and signed by an authorised representative of each of the Parties.

  • Variation of the contract The parties undertake not to vary or modify the Clauses. This does not preclude the parties from adding clauses on business related issues where required as long as they do not contradict the Clause. Clause 11

  • Variation No variation of this Agreement shall be effective unless it is in writing and signed by the parties (or their authorised representatives).

  • MODIFICATION & VARIATION The Company may, from time to time and at any time without notice to You, modify this Agreement. You agree that the Company has the right to modify this Agreement or revise anything contained herein. You further agree that all modifications to this Agreement are in full force and effect immediately upon posting on the Website and that modifications or variations will replace any prior version of this Agreement, unless prior versions are specifically referred to or incorporated into the latest modification or variation of this Agreement.

  • Variation of these clauses The parties may not modify these clauses except to update any information in Annex B, in which case they will inform the authority where required. This does not preclude the parties from adding additional commercial clauses where required.

  • Variation of Terms All terms and any variations thereof shall be deemed to refer to masculine, feminine, or neuter, singular or plural, as the identity of the Person or Persons may require.

  • No Variation This Agreement cannot be amended or varied except in writing signed by the parties.

  • VARIATION OF AGREEMENT 6.1 Subject to clauses 3.2, 6.2 and 6.3, this Agreement may be varied at any time if agreed between the Administrator and the Sector Association.

  • Variations No variation of this Agreement shall be effective unless in writing and signed by or on behalf of the Parties.

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