Compatibility is a vital aspect, especially for two people in love. There is no hard and fast rule, according to which we can predict the compatibility between two people. However, various attempts have been made to derive a basic analysis about love compatibility. As such, this is a topic which is quite vast. If you search for the term on the Internet, you will often end up finding a plethora of love compatibility 'tests' which will tell you whether you and your partner are compatible or not. These tests will ask you, to give your name and date of birth, and the name and date of birth of your partner. Based on this, they will use different techniques to provide you with an analysis of how compatible the two of you would be in your love relationship. Sometimes, there may even be a quiz or two to fill out; and they will derive your compatibility scores based on the responses. Let us have a look at the techniques that these websites employ for finding out the compatibility. The first method takes into account the date of birth only. Here, they either use numerology, or astrology or both, to compute your love compatibility. With numerology, the date of birth of each partner in the relationship is totaled to make a single digit number. For example: 7th of March, 1985 will be totaled as 7 + 3 + 1 + 9 + 8 + 5 = 33, and then 3 + 3 = 6. So the numerological total of the date of birth 7th March, 1985 is 6. Depending upon the total of the partner's date of birth number, your individual personalities will be described, and then the compatibility of your relationship would be determined. In case of astrology, the date of birth 7th March, 1985 falls under the sign of Pisces. They deduce the astrological sign of your partner based on his date of birth. Based on this, a personality profile of a Piscean would be provided along with the personality profile of your partner's sun sign. The compatibility between the two of you would be predicted on the basis of these profiles. The second method takes into account the names of both the partners in the relationship. Here too, numerology is employed. According to certain numerological principles, each alphabet corresponds to a number. The numbers corresponding to the alphabets of the name is totaled to a single digit, and the data is analyzed. For example: Mary Jane Smith would be 4 + 1 + 9 + 7 (for 'Mary') + 1 + 1 + 5 + 5 (for 'Jane') + 1 + 4 + 9 + 2 + 8 (for 'Smith') = 57 and 5 + 7 = 12 and 1 + 2 = 3. So the numerological total of the name 'Mary Jane Smith' is 3; and that name number is analyzed along with the name number for her partner. The love compatibility analysis is thus conducted on this basis. The third method uses a combination of all the methods mentioned above. The fourth method, which is actually very accurate, and which you may not get *free* on many websites; uses the name and date of birth, along with your time and place of birth. With this data, the moon sign is ascertained based on your birth time and the latitude and longitude of your place of birth. Along with the moon sign, the placement of other planets (and most importantly Venus) is also ascertained in what is called a natal chart. The moon sign talks of the emotional make up of a person. Venus is the planet of love and romance. It depicts how we naturally interact with people in social, romantic or platonic situations. Therefore, the placement of both the Moon and the Venus in the natal chart makes several things clear for assessing the love compatibility in a relationship. Generally speaking, when Venus is placed in the signs of Taurus, Virgo and Capricorn (which are earth signs); you are focused in life with a steady and loyal nature in love relationships, but with a distinct love for luxurious things in life. When Venus is placed in the signs of Cancer, Scorpio and Pisces (which are water signs); one is sensitive and spiritually oriented, with a sentimental and emotional approach in love relationships, with a spot of idealism thrown in for good measure. When Venus is placed in the signs of Aries, Leo and Sagittarius (which are fire signs); one is an aggressive initiator in and of relationships, with a love for being demonstrative and passionate in their approach. With Venus placed in the signs of Gemini, Libra and Aquarius (which are air signs); one has a very versatile personality with a love for being experimental in relationships, and having an intellectual approach, along with a hint of poetry in the air. Thus, there are several methods in popular practice which will help you deduce the love compatibility between you and your partner. However, along with this, one must not forget that these rules are not hard and fast. These are mere guidelines which help you understand each other better. The real relationship is based on your mutual understanding, your psychological facets and maturity levels.