Bill of quantities
A bill of (short- LV) is part of a service description and describes in the form of a partial performance under a contract to be provided overall performance. Already for tendering the performance can be described by the specifications. Alternatively, there is the specification for performance program.
The partial performance of the specifications are often referred to as items. Often, the performance index is supplemented by a general description of the subject matter hereof. Bills are based on contracts in many industries. In many areas, service specifications are supplemented by existing regulations, standards and regulations. Partly also unified text modules to describe the services are used. For example, in construction, building materials industry and in building technology.
Normally, a performance directory is hierarchically divided into group stages ( eg, Los, trade, section, title), in which then the various sub- services are listed under ordinal numbers.
The advantages of the specifications are generally clear and complete presentation of the entire contract Heck, even as a basis for obtaining multiple comparable deals in the competition and the subsequent creation of a price comparison. Within a bill of various partial services, also called positions distinguished:
- Power position or execution position: position, which describes an executable performance.
- Basic Position: reference position to which alternative or supplement items refer.
- Alternatively, position or choice position: position, which can be the client and for which he usually decides before the contract instead of the corresponding basic item for execution.
- Allowance Position: position at which the performance of a basic position is completed.
- Possible situation or requirement item: describes a performance that could occur because of incomplete information prior to execution. These are to be avoided in accordance with VOB / A.
- Master position: describes services that are described in more detail in the following positions
A performance index is structured in tabular form consists of the following parts:
- Position number
- Quantitative indication
- Unit
- Text, which usually consists of a long text and short text. The short text is used for example in the bill again.
- Unit Price (EP)
- Total Price ( GP), which results from the multiplication of quantity and unit price.
For the compilation of specifications are used nowadays in professional special software. Especially in the construction industry, where service specifications for the procurement of construction services are common, so-called AVA systems have been established. This AVA is an acronym for the processes of tendering, awarding and billing. Extensive effort generating releases will be here by the Joint Committee electronics in the building available. Bills to be replaced in the construction industry mainly electronic. For this purpose the GAEB an appropriate data exchange methods for Germany and the ÖNORM an appropriate data exchange methods for Austria.
Public tenders are subject to complicated procurement law, which differs numerous different cases. Then, for example, for construction services according to § 7 paragraph 1 No. 1 VOB / A to describe the performance and clearly so that all applicants must understand the description in the same sense, and their prices can calculate preliminary work safely and without extensive. According to § 7 para 1 No. 1 VOB / A the performance is also necessary to represent graphically or by samples or other explanation for it. In no LV manufacturer and product may be named after VOB since 2007.
In public procurement law, the award itself is regulated.