1. What is an SPC and what is it required for?
An SPC is a system that serves to guarantee equal opportunities in access to public service based on merit and in order to promote the development of public service for the benefit of society. In the same way, the SPC serves to attract, retain, motivate and train the best women and men in public service, guaranteeing that the public administration goes through the different changes of government with minimum disruption and maximum efficiency, ensuring that being politically neutral, it is a strategic factor in the country's competitiveness.
The scenario of democratic governance towards which the country is headed requires a professional and efficient public administration that is beyond any political change or party alternation. The imperative of having professional public servants responds to the need to guarantee citizens the provision of quality public services, the continuity of policies and programs, and above all legal security.
2. What are the benefits of belonging to the SPC
- That job stability is not affected during the changes of administration and work teams that occur in the dependencies. The real identification of opportunities to fill positions horizontally and vertically, which yield better salaries. That given satisfactory performance and outstanding, there are a series of incentives and recognitions. It is the opportunity to reconcile the vocation of service and the life project with a professional career in public service, aimed at building a good government that gives positive results to society.
3. What is the legal basis of the SPC and when does it come into operation
The SPC is based on the Law of Professional Career Service in the APF, which was published in the Official Gazette of the Federation on April 10, 2003; it entered into force on October 7 of the same year.
Its gradual implementation began on April 5, 2004, the date on which its Regulations came into force. The full operation of the SPC will take place in 2006.
4. The Regulations of the SPC Law
The Regulations of the SPC Law, published in the Official Gazette of the Federation on April 2, 2004, implies the implementation of the SPC. That is, from its publication, no person should join the APF in the positions of Liaison to General Director, but it is through their participation in a public and open call contest, and in which the interested parties prove that they have the profile and the skills that the position in competition requires.
Similarly, this Regulation explains how to implement the seven subsystems contemplated by the System, as well as the level of coordination that the SFP will have with the other APF dependencies responsible for the implementation of the System. The Unit seeks to find a balance between what to centralize and what to decentralize. On the one hand, it seeks to centralize regulations and technology to have standardized best practices. On the other hand, it seeks to decentralize the operation and the decision to respond in a timely manner to the needs of the agencies.
5. XR charts
An XR control chart, actually they are two charts in one, one represents the averages of the samples of the (X chart) and the other represents the ranges (R chart), they must be built together, since the X chart shows us any change in the mean of the process and the R graph shows us any change in the dispersion of the process, to determine the X and R of the samples, they are based on the same data.
The particular use of the XR chart is that it shows us the changes in the mean value and in the dispersion of the process at the same time, it is also an effective tool to verify abnormalities in a process dynamically.
Some important points to consider before preparing this graph are:
Purpose of the graph
Variable to consider
Sample size
To have a criterion to decide whether to investigate causes of variation in the production process.
Familiarize staff with the use of this chart.
The process that must be followed to build a graph is:
The construction of a graph of ranges and average results from forming a unit, both of the graph of averages and the graph of ranges.
It consists of two sections, the upper part is dedicated to the averages, and the lower part to the ranges.
On the vertical axis the scale is set, along the horizontal axis the samples are numbered.
In the graph these averages are related to the intervals during which the samples were taken. The values corresponding to the sample values are indicated on the vertical axis. The horizontal axis shows the time periods in which the samples are taken similar to that of averages.
The interpretation of this graph of average and range would be that from the data of the graph of averages and ranges, we can determine the central value of the process and its application.
Through this process it is under control when it does not show any trend and also no point goes outside the limits.
The different types of trends are described, which are patterns of abnormal behavior of the points (instability or process out of statistical control)
6. Graph of means and standard deviations
This graph is the statistical instrument used to study the behavior of a manufacturing process, considering the standard deviation as an indicator.
The general structure is made up of two parts, one is intended to record the averages of the quality characteristic under consideration and the other to control the variability of the process.
The advantage of using this graph is that for these values of n the standard deviation is more sensitive to small changes than the range.
Within the construction procedure for said graph, it includes calculations of control limits for the two parts that constitute the graph and the graphing of the averages and standard deviations obtained in each subgroup.
The variability of the control process is important, when starting the construction of the graph, if the process does not show statistical stability, then the part corresponding to the averages will not be reliable since the control limits of X depend on the mean value of s.
