Method for analyzing and/or testing at least one user interface, data processing device and computer program product

A method for analyzing or testing at least one user interface, the method comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface;
• creating two pixel images as gray level images with M*N pixels, wherein the value of the gray level is between 0 and 255 for each pixel;
• creating a first gray value histogram H=(x0, x1, . . . , x255) for the first pixel image, wherein the value of each entry xi of the first gray value histogram H indicates how many pixels with the gray value i are present in the first pixel image;
• creating a second gray value histogram H′=(x′0, x′1, . . . , x′255) for the second pixel image, wherein the value of each entry x′i of the second gray value histogram H′ indicates how many pixels with the gray value i are present in the second pixel image;
• calculating a difference variable D, wherein:
• D
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• ;
• and
• marking a difference if D is greater than a predetermined threshold value, in particular if D>0.

A method for analyzing or testing at least one user interface, the method comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• and
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface,
• wherein each pixel image is colored according to a predetermined color by the presentation apparatus or the evaluation apparatus, wherein the predetermined color is different for all pixel images, and
• an output pixel image is output by the evaluation apparatus for automatically determining or representing the difference of the pixel images of the at least one web-based user interface, which output pixel image is created by applying a predetermined operation, in particular pixelwise difference, to the individual pixel images.

A method for analyzing or testing at least one user interface, the method comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• and
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface,
• wherein for automatically determining or representing the difference of the P pixel images of the at least one web-based user interface, an output pixel image is output by the evaluation apparatus,
• wherein the output pixel image is created from P individual pixel images such that for each pixel image, the color value of each pixel of this pixel image is varied according to a predetermined color value variation function, wherein the color value variation function is different for all pixel images, and
• wherein, according to their position, corresponding pixels of the pixel images are offset against each other by means of a given operation, in particular pixelwise difference, as the corresponding pixel of the output pixel image.

A non-transitory computer-readable storage medium comprising instructions that, when loaded into a computer and executed by at least one processor of the computer, cause the computer to perform operations comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface, wherein for detecting or representing the difference of the pixel images, at least one index is determined for the pixel image, and the at least one index of each pixel image is compared to the at least one index of the further pixel images;
• creating each pixel image as a gray level image with M*N pixels, wherein the value of the gray level is between 0 and 255 for each pixel;
• creating a gray value histogram H=(x0, x1, . . . , x255) for each pixel image, wherein the value of each entry xi of the gray value histogram indicates how many pixels with the gray value i are present in the respective pixel image;
• calculating a relative gray value histogram h=(y0, y1, . . . , y255)=H (M*N) for each pixel image;
• calculating an entropy
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• y
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• log
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• y
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• for each pixel image;
• and
• outputting at least one output variable depending on the entropy of each pixel image.

A non-transitory computer-readable storage medium comprising instructions that, when loaded into a computer and executed by at least one processor of the computer, cause the computer to perform operations comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface;
• creating two pixel images as gray level images with M*N pixels, wherein the value of the gray level is between 0 and 255 for each pixel;
• creating a first gray value histogram H=(x0, x1, . . . , x255) for the first pixel image, wherein the value of each entry xi of the first gray value histogram H indicates how many pixels with the gray value i are present in the first pixel image;
• creating a second gray value histogram H′=(x′0, x′1, . . . , x′255) for the second pixel image, wherein the value of each entry x′i of the second gray value histogram H′ indicates how many pixels with the gray value i are present in the second pixel image;
• calculating a difference variable D, wherein:
• D
• ⁢
• =
• ⁢
• 
• H
• -
• H
• ′
• 
• =
• ⁢
• ∑
• i
• =
• 0
• 255
• ⁢
• 
• H
• ⁡
• [
• i
• ]
• -
• H
• ′
• ⁡
• [
• i
• ]
• 
• ;
• and
• marking a difference if D is greater than a predetermined threshold value, in particular if D>0.

A non-transitory computer-readable storage medium comprising instructions that, when loaded into a computer and executed by at least one processor of the computer, cause the computer to perform operations comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• and
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface,
• wherein each pixel image is colored according to a predetermined color by the presentation apparatus or the evaluation apparatus, wherein the predetermined color is different for all pixel images, and
• an output pixel image is output by the evaluation apparatus for automatically determining or representing the difference of the pixel images of the at least one web-based user interface, which output pixel image is created by applying a predetermined operation, in particular pixelwise difference, to the individual pixel images.

A non-transitory computer-readable storage medium comprising instructions that, when loaded into a computer and executed by at least one processor of the computer, cause the computer to perform operations comprising:

• transmitting an address of at least one user interface, in particular a web-based user interface, or a source code together with the associated graphical elements of at least one user interface, in particular a web-based user interface, to an evaluation apparatus;
• transmitting the address of the at least one user interface or the source code together with the associated graphical elements of the at least one user interface to at least two differently configured presentation apparatuses;
• generating at least one pixel image of the user interface on each presentation apparatus;
• transmitting each generated pixel image to the evaluation apparatus;
• and
• automatically determining or representing at least one difference between the generated pixel images of the at least one user interface,
• wherein for automatically determining or representing the difference of the P pixel images of the at least one web-based user interface, an output pixel image is output by the evaluation apparatus,
• wherein the output pixel image is created from P individual pixel images such that for each pixel image, the color value of each pixel of this pixel image is varied according to a predetermined color value variation function, wherein the color value variation function is different for all pixel images, and
• wherein, according to their position, corresponding pixels of the pixel images are offset against each other by means of a given operation, in particular pixelwise difference, as the corresponding pixel of the output pixel image.