f) target volume for each Index broken down by periods within planning cycle (by years In a five-year planning cycle, by half-years and quarters In annual planning cycle). To facilitate their use each form has Its ordinal number. AI 1 forms have a unified character that are based on known scheme and alI explanatory notes use standard terminology. 291 Considerable efforts are ·being undertaken In the USSR to mechanize the planning work. Consequently all planning forms are elaborated bearing In mind their computerized processing. Indices play a particular role In development section of the plan. Their determines not only the quality of planning scientific and technological progress. preparing the S&T correct selection but also actual The management of scientific and technological progress Is carried out using two groups of Indices. The first group comprises the so-cal led •through• Indices common for alI executors. They reflect the dynamics of certain directions scientific and technological progress as a whole (e.g. dyunamlcs of general q~allty level of produce or dynamics of general technolglcal status of production), The share of super quality product In the total volume of manufactured products Is an example of the Index of products quality used In the USSR. The second group comprises specific Indices characterizing a certain phenomena of scientific and technological progress Inherent to a particular branch. For example, every branch uses a technology which Is not used In other branches. Or machines of a given group have their particular qual ltatlve characteristics (speed and accuracy of operation, sphere of ap_plicatlon, e-tc). The plan can envisage a specific technology or manufacture of a machine (machines) of the given group with equal or better parameters. The dynamics of this Index cannot be used for determining Its Influence on the general dynamics of scientific and technological progress, However, If a machine Is accepted 
**Analysis**
The text appears to be discussing the planning and management of scientific and technological progress in a country, likely the USSR, with a focus on indices and targets used to measure and track this progress. It mentions the use of specific technologies and machines in different branches, which suggests an industry-related context. The text also touches on the idea of quality and dynamics of scientific and technological progress, which is a broader concept that can be applied to various sectors.

**Category**
Science and technology, Industry