non profit business ideas Activity diagrams must be used in alignment along with other modeling techniques like interaction diagrams and State diagrams. The main reason behind with your diagrams would be to model the task flow behind it being designed. these Diagrams are also helpful for analyzing a use case by describing what actions have to take place then when they ought to occur, describing an elaborate sequential algorithm and modeling applications with parallel processes. The essence of economic value is human labor in the process of human economic products and relations. The value of the use value of creating products and the labor value of creating production relationship. The value concept in "das kapital" refers to exchange value, which is the essence of capital relations. Can't be replaced by local value In November 2017, Advisor Perspectives published an article said that in addition to the improvement of fuel efficiency, petrol consumption decline is due in large part to the following factors: the ageing staff away from the workplace; The home office model is developing more and more; Social media takes the place of face-to-face communication, and travel is unnecessary. More and more young people are no longer driving their cars. And urban population growth accelerated, reducing per capita gasoline dependence. The accounting income maintains the financial capital preservation, namely, the monetary value that only requires the owner to invest is not eroded, the enterprise income exceeds the input value part is the accounting income. Accounting focuses on reporting financial results. The economic benefits insist on physical capital preservation, which can only be confirmed when the actual production capacity of the owner is saved. It is believed that only by maintaining the actual production capacity of the enterprise can the enterprise reproduce smoothly. Physical capital preservation is more meaningful than the income of financial capital preservation, but it is difficult to measure. Generally speaking, the interest rate varies according to the term of measurement, indicating that the method has annual interest rate, monthly interest rate and daily interest rate. The withdrawal of shares shall include the two kinds of compensation for recovery and compensation. Free withdrawal refers to the return of shares that have been allocated for free. For example, shareholders voluntarily pay back their allocated shares voluntarily. "Buy" or "buy back" means a limited company shall buy back its shares from its shareholders at a certain price. The company's reduced corporate capital could affect the price of its shares in the market. Therefore, article 143 of the company law stipulates that the company shall not acquire shares in the company. However, the following situations are excluded: (1) reducing the company's registered capital; (2) merger with other companies holding shares of the company; (3) reward the employees of the company; (4) shareholders who have objected to the merger and separation of the company made by the shareholders' general meeting require the company to acquire its shares. Company for reduce the company's registered capital, and hold the company shares of other companies mergers and shares will be awarded to the company worker of acquisition, the company's share capital shall be subject to the resolution of the shareholders' general meeting. After acquiring the shares of the company, the company shall cancel the registered capital of the company within 10 days from the date of the acquisition; Belong to a merger with hold shares in other companies the company and the shareholders for the company merger, division of resolutions of the shareholders' general meeting to dissent, requiring companies to buy the shares, shall transfer or cancellation within 6 months. The company shall not exceed 5% of the total amount of the shares issued by the company for the company's purchase of the shares of the company by awarding the shares to its employees; As regards the financing source of the acquisition, the expenses shall be paid from the after-tax profits of the company; The shares acquired by the company shall be transferred to the staff within one year.