Advantages: low risk, supports comparison of results, old system is there as backup should there be a problem, changeover happens gradually, staff have time to familiarise themselves with new system, Disadvantages: high cost, time-consuming, duplication of resources for a period of time, duplicate sets of data must be kept, systems are not always in synch,

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?