curve. When this situation occurs it is always cheaper for one large firm to supply the market than multiple smaller firms. In fact, absent government intervention such markets will naturally evolve into a monopoly. An early market entrant who takes advantage of the cost structure and can expand rapidly can exclude smaller firms from entering and can drive or buy out other firms. A natural monopoly suffers from the same inefficiencies as any other monopoly. A profit seeking natural monopoly will produce where marginal revenue equals marginal costs. · Regulation of natural monopolies is problematic. · Breaking up such monopolies is counter productive The most frequently used methods dealing with natural monopolies is government regulations and public ownership. · Government regulation generally consists of regulatory commissions charged with the principal duty of setting prices.
Journal entries - page 238 Benchmarking is the continuous process of comparing the levels of performance in producing products and services and executing activities against the best levels of performance in competing companies or in companies having similar process. A standard cost is a carefully determined cost used to benchmark for judging performance. The purposes of a standard cost are to exclude part inefficiencies and to take into account changes expected to occur in the budget period. Managers use variances for control, decision implementation, performance evaluation, organization learning and continuous improvement. Chapter 8 - Flexible budgets, overhead cost variances, management control Standard costing is a costing system that traces direct costs to output produced by multiplying the standard prices or rates by the standard quantities of inputs allowed for
sharing information rapidly and accurately (Gallaher 2004). Thus, the lack of accurate information and its slow exchange is one of the main reasons for the construction industrys low productivity, while availability of information is critical in the project-based construction industry for decision making. In conclusion, we can say that there are plenty of problems, and therefore, it is necessary to study the causes of inefficiencies and to determine which of these causes has the greatest negative impact on performance. 2.2 Causes of the problems Many causes for the problems start from client due to reason that client is not a professional. Too much attention is put on price than quality; i.e. contractors (all different specialty contractors) are chosen by the lowest bid. Also poor briefing and definition of the requirements for the project needs and functionalities result in the late changes of the design
layer. Repositooriumi arhitektuur Repositooriumi arhitektuuri eelised ja puudused Eelised: Components can be independent --they do not need to know of the existence of other components. Changes made by one component can be propagated to all components. All data can be managed consistently (e.g., backups done at the same time) as it is all in one place. Puudused: The repository is a single point of failure so problems in the repository affect the whole system. May be inefficiencies in organizing all communication through the repository. Distributing the repository across several computers may be difficult. Klient-server arhitektuur Klient - Server arhitektuuri eelised ja puudused Eelised: The principal advantage of this model is that servers can be distributed across a network. General functionality (e.g., a printing service) can be available to all clients and does not need to be implemented by all services. Puudused:
connections. It was an iterative process culminating in the construction of life-size curtain wall mockups for the most difficult corner conditions. Although the library had a 15-month long preconstruction phase, the design team refused to share their models with the construction team, and handed over only 2D plans, sections and elevations (Figure 28). In comparison to the DAM, the reluctance to share models caused significant delays and inefficiencies. Hoffman was responsible for providing an accurate model to its subcontractors, however they were hoping to simply pass on the architect’s model when the preliminary design was completed. Unfortunately, the contract language was not clear enough to indicate whether the designers were obligated to share their models or not. OMA & LMN were unwilling to take the increased risk associated with 3D models. Therefore Hoffman had an option to produce a BIM model
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